[Haskell-cafe] cannot post to haskellmode-emacs@projects.haskell.org

Hi, all my posts to the haskellmode-emacs list (using the address in the subject) are being rejected with the error: 451 451 Temporary local problem - please try later (state 18) (after several retries by the Google smtp server, which i use as a smarthost). Any idea of what could be causing this problem? Thanks! jao -- There are two ways to write error-free programs; only the third one works. - Alan Perlis, Epigrams in Programing